check that the version of __sync_sub_and_fetch that returns a value is supported...

[wxWidgets.git] / src / dfb / bitmap.cpp

diff --git a/src/dfb/bitmap.cpp b/src/dfb/bitmap.cpp
index 2072c300b79f762ce7c89b3c381b7fde345f2be9..0c245df509ce2db061cff161e81292c0ab9f417f 100644 (file)
--- a/src/dfb/bitmap.cpp
+++ b/src/dfb/bitmap.cpp
@@ -64,7 +64,7 @@ static void CopySurfaceToImage(const wxIDirectFBSurfacePtr& surface,
                                wxImage& image)
 {
     wxIDirectFBSurface::Locked locked(surface, DSLF_READ);
-    wxCHECK_RET( locked.ptr, _T("failed to lock surface") );
+    wxCHECK_RET( locked.ptr, "failed to lock surface" );
 
     const unsigned width = image.GetWidth();
     const unsigned height = image.GetHeight();
@@ -191,10 +191,10 @@ CreateSurfaceWithFormat(int w, int h, DFBSurfacePixelFormat format)
 // Creates a surface that will use wxImage's pixel data (RGB only)
 static wxIDirectFBSurfacePtr CreateSurfaceForImage(const wxImage& image)
 {
-    wxCHECK_MSG( image.Ok(), NULL, _T("invalid image") );
+    wxCHECK_MSG( image.Ok(), NULL, "invalid image" );
     // FIXME_DFB: implement alpha handling by merging alpha buffer with RGB
     //            into a temporary RGBA surface
-    wxCHECK_MSG( !image.HasAlpha(), NULL, _T("alpha channel not supported") );
+    wxCHECK_MSG( !image.HasAlpha(), NULL, "alpha channel not supported" );
 
     // NB: wxImage uses RGB order of bytes while DirectFB uses BGR, so we
     //     cannot use preallocated surface that shares data with wxImage, we
@@ -203,6 +203,27 @@ static wxIDirectFBSurfacePtr CreateSurfaceForImage(const wxImage& image)
                                    DSPF_RGB24);
 }
 
+static bool ConvertSurfaceToFormat(wxIDirectFBSurfacePtr& surface,
+                                   DFBSurfacePixelFormat format)
+{
+    if ( surface->GetPixelFormat() == format )
+        return true;
+
+    int w, h;
+    surface->GetSize(&w, &h);
+    wxIDirectFBSurfacePtr s = CreateSurfaceWithFormat(w, h, format);
+    if ( !s )
+        return false;
+
+    if ( !s->SetBlittingFlags(DSBLIT_NOFX) )
+        return false;
+    if ( !s->Blit(surface->GetRaw(), NULL, 0, 0) )
+        return false;
+
+    surface = s;
+    return true;
+}
+
 static DFBSurfacePixelFormat DepthToFormat(int depth)
 {
     switch ( depth )
@@ -279,7 +300,7 @@ bool wxBitmap::Create(const wxIDirectFBSurfacePtr& surface)
 {
     UnRef();
 
-    wxCHECK_MSG( surface, false, _T("invalid surface") );
+    wxCHECK_MSG( surface, false, "invalid surface" );
 
     m_refData = new wxBitmapRefData();
     M_BITMAP->m_surface = surface;
@@ -341,7 +362,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth)
     }
 
     // FIXME: implement mask creation from image's mask (or alpha channel?)
-    wxASSERT_MSG( !image.HasMask(), _T("image masks are ignored for now") );
+    wxASSERT_MSG( !image.HasMask(), "image masks are ignored for now" );
 }
 
 wxImage wxBitmap::ConvertToImage() const
@@ -374,7 +395,7 @@ wxImage wxBitmap::ConvertToImage() const
     }
 
     // FIXME: implement mask setting in the image
-    wxASSERT_MSG( GetMask() == NULL, _T("bitmap masks are ignored for now") );
+    wxASSERT_MSG( GetMask() == NULL, "bitmap masks are ignored for now" );
 
     return img;
 }
@@ -392,8 +413,11 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
     else
         format = DSPF_RGB24;
 
-    // requested format is not what this bitmap uses
-    if ( format != M_BITMAP->m_surface->GetPixelFormat() )
+    // convert the bitmap into format compatible with requested raw access;
+    // note that we don't bother converting the bitmap back in UngetRawData(),
+    // as unpacked formats (RGB24, RGB32) are the common case and converting
+    // between them while blitting is fast enough (FIXME?)
+    if ( !ConvertSurfaceToFormat(M_BITMAP->m_surface, format) )
         return NULL;
 
     void *bits = NULL;
@@ -431,7 +455,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 {
     wxCHECK_RET( depth == 1, wxT("can only create mono bitmap from XBM data") );
 
-    wxFAIL_MSG( _T("not implemented") );
+    wxFAIL_MSG( "not implemented" );
 }
 
 bool wxBitmap::IsOk() const
@@ -582,14 +606,14 @@ void wxBitmap::SetHeight(int height)
 {
     AllocExclusive();
 
-    wxFAIL_MSG( _T("SetHeight not implemented") );
+    wxFAIL_MSG( "SetHeight not implemented" );
 }
 
 void wxBitmap::SetWidth(int width)
 {
     AllocExclusive();
 
-    wxFAIL_MSG( _T("SetWidth not implemented") );
+    wxFAIL_MSG( "SetWidth not implemented" );
 }
 
 void wxBitmap::SetDepth(int depth)